Pulse oximetry is a non-invasive method used to measure the oxygen saturation level of the blood. It helps assess how effectively oxygen is being transported to parts of the body furthest from the heart, such as the arms and legs.
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A pulse oximeter typically clips onto a patient's finger, toe, or earlobe.
Normal oxygen saturation levels range from 95% to 100%.
Low oxygen saturation levels can indicate issues such as respiratory infections, chronic obstructive pulmonary disease (COPD), or other pulmonary conditions.
Nutrition can influence oxygen transport; for example, iron deficiency anemia can lower oxygen-carrying capacity.
Proper hydration and electrolyte balance are essential for accurate pulse oximetry readings.
Review Questions
What is the normal range for oxygen saturation levels measured by pulse oximetry?
How can nutritional deficiencies like iron deficiency anemia impact pulse oximetry readings?
Why is proper hydration important for obtaining accurate pulse oximetry measurements?
Related terms
Oxygen Saturation (SpO2): The percentage of hemoglobin that is saturated with oxygen in the blood.